Staging: comedi: add usb dt9812 driver

Data Translation DT9812 USB driver

From: Anders Blomdell <anders.blomdell@control.lth.se>
Cc: David Schleef <ds@schleef.org>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/Makefile

@@ -10,3 +10,4 @@ obj-$(CONFIG_COMEDI_PCI_DRIVERS)	+= mite.o
 # Comedi USB drivers
 obj-$(CONFIG_COMEDI_USB_DRIVERS)	+= usbdux.o
 obj-$(CONFIG_COMEDI_USB_DRIVERS)	+= usbduxfast.o
+obj-$(CONFIG_COMEDI_USB_DRIVERS)	+= dt9812.o

drivers/staging/comedi/drivers/dt9812.h

+#ifndef __DT9812_H__
+#define __DT9812_H__
+
+#define DT9812_DIAGS_BOARD_INFO_ADDR        0xFBFF
+#define DT9812_MAX_WRITE_CMD_PIPE_SIZE      32
+#define DT9812_MAX_READ_CMD_PIPE_SIZE       32
+
+/*
+ * See Silican Laboratories C8051F020/1/2/3 manual
+ */
+#define F020_SFR_P4                       0x84
+#define F020_SFR_P1                       0x90
+#define F020_SFR_P2                       0xa0
+#define F020_SFR_P3                       0xb0
+#define F020_SFR_AMX0CF                   0xba
+#define F020_SFR_AMX0SL                   0xbb
+#define F020_SFR_ADC0CF                   0xbc
+#define F020_SFR_ADC0L                    0xbe
+#define F020_SFR_ADC0H                    0xbf
+#define F020_SFR_DAC0L                    0xd2
+#define F020_SFR_DAC0H                    0xd3
+#define F020_SFR_DAC0CN                   0xd4
+#define F020_SFR_DAC1L                    0xd5
+#define F020_SFR_DAC1H                    0xd6
+#define F020_SFR_DAC1CN                   0xd7
+#define F020_SFR_ADC0CN                   0xe8
+
+#define F020_MASK_ADC0CF_AMP0GN0          0x01
+#define F020_MASK_ADC0CF_AMP0GN1          0x02
+#define F020_MASK_ADC0CF_AMP0GN2          0x04
+
+#define F020_MASK_ADC0CN_AD0EN            0x80
+#define F020_MASK_ADC0CN_AD0INT           0x20
+#define F020_MASK_ADC0CN_AD0BUSY          0x10
+
+#define F020_MASK_DACxCN_DACxEN           0x80
+
+typedef enum {			//                      A/D      D/A     DI   DO    CT
+	DT9812_DEVID_DT9812_10,	//    8        2       8    8     1   +/- 10V
+	DT9812_DEVID_DT9812_2PT5,	//    8        2       8    8     1   0-2.44V
+#if 0
+	DT9812_DEVID_DT9813,	//    16       2       4    4     1   +/- 10V
+	DT9812_DEVID_DT9814	//    24       2       0    0     1   +/- 10V
+#endif
+} dt9812_devid_t;
+
+typedef enum {
+	DT9812_GAIN_0PT25 = 1,
+	DT9812_GAIN_0PT5 = 2,
+	DT9812_GAIN_1 = 4,
+	DT9812_GAIN_2 = 8,
+	DT9812_GAIN_4 = 16,
+	DT9812_GAIN_8 = 32,
+	DT9812_GAIN_16 = 64,
+} dt9812_gain_t;
+
+typedef enum {
+	DT9812_LEAST_USB_FIRMWARE_CMD_CODE = 0,
+	DT9812_W_FLASH_DATA = 0,	// Write Flash memory
+	DT9812_R_FLASH_DATA = 1,	// Read Flash memory (misc config info)
+
+	// Register read/write commands for processor
+	DT9812_R_SINGLE_BYTE_REG = 2,	// Read a single byte of USB memory
+	DT9812_W_SINGLE_BYTE_REG = 3,	// Write a single byte of USB memory
+	DT9812_R_MULTI_BYTE_REG = 4,	// Multiple Reads of USB memory
+	DT9812_W_MULTI_BYTE_REG = 5,	// Multiple Writes of USB memory
+	DT9812_RMW_SINGLE_BYTE_REG = 6,	// Read, (AND) with mask, OR value,
+	// then write (single)
+	DT9812_RMW_MULTI_BYTE_REG = 7,	// Read, (AND) with mask, OR value,
+	// then write (multiple)
+
+	// Register read/write commands for SMBus
+	DT9812_R_SINGLE_BYTE_SMBUS = 8,	// Read a single byte of SMBus
+	DT9812_W_SINGLE_BYTE_SMBUS = 9,	// Write a single byte of SMBus
+	DT9812_R_MULTI_BYTE_SMBUS = 10,	// Multiple Reads of SMBus
+	DT9812_W_MULTI_BYTE_SMBUS = 11,	// Multiple Writes of SMBus
+
+	// Register read/write commands for a device
+	DT9812_R_SINGLE_BYTE_DEV = 12,	// Read a single byte of a device
+	DT9812_W_SINGLE_BYTE_DEV = 13,	// Write a single byte of a device
+	DT9812_R_MULTI_BYTE_DEV = 14,	// Multiple Reads of a device
+	DT9812_W_MULTI_BYTE_DEV = 15,	// Multiple Writes of a device
+
+	DT9812_W_DAC_THRESHOLD = 16,	// Not sure if we'll need this
+
+	DT9812_W_INT_ON_CHANGE_MASK = 17,	// Set interrupt on change mask
+
+	DT9812_W_CGL = 18,	// Write (or Clear) the CGL for the ADC
+	DT9812_R_MULTI_BYTE_USBMEM = 19,	// Multiple Reads of USB memory
+	DT9812_W_MULTI_BYTE_USBMEM = 20,	// Multiple Writes to USB memory
+
+	DT9812_START_SUBSYSTEM = 21,	// Issue a start command to a
+	// given subsystem
+	DT9812_STOP_SUBSYSTEM = 22,	// Issue a stop command to a
+	// given subsystem
+
+	DT9812_CALIBRATE_POT = 23,	//calibrate the board using CAL_POT_CMD
+	DT9812_W_DAC_FIFO_SIZE = 24,	// set the DAC FIFO size
+	DT9812_W_CGL_DAC = 25,	// Write (or Clear) the CGL for the DAC
+	DT9812_R_SINGLE_VALUE_CMD = 26,	// Read a single value from a subsystem
+	DT9812_W_SINGLE_VALUE_CMD = 27,	// Write a single value to a subsystem
+	DT9812_MAX_USB_FIRMWARE_CMD_CODE	// Valid DT9812_USB_FIRMWARE_CMD_CODE's
+		// will be less than this number
+} dt9812_usb_firmware_cmd_t;
+
+typedef struct {
+	u16 numbytes;
+	u16 address;
+} dt9812_flash_data_t;
+
+#define DT9812_MAX_NUM_MULTI_BYTE_RDS  \
+    ((DT9812_MAX_WRITE_CMD_PIPE_SIZE - 4 - 1) / sizeof(u8))
+
+typedef struct {
+	u8 count;
+	u8 address[DT9812_MAX_NUM_MULTI_BYTE_RDS];
+} dt9812_read_multi_t;
+
+typedef struct {
+	u8 address;
+	u8 value;
+} dt9812_write_byte_t;
+
+#define DT9812_MAX_NUM_MULTI_BYTE_WRTS  \
+    ((DT9812_MAX_WRITE_CMD_PIPE_SIZE - 4 - 1) / sizeof(dt9812_write_byte_t))
+
+typedef struct {
+	u8 count;
+	dt9812_write_byte_t write[DT9812_MAX_NUM_MULTI_BYTE_WRTS];
+} dt9812_write_multi_t;
+
+typedef struct {
+	u8 address;
+	u8 and_mask;
+	u8 or_value;
+} dt9812_rmw_byte_t;
+
+#define DT9812_MAX_NUM_MULTI_BYTE_RMWS  \
+    ((DT9812_MAX_WRITE_CMD_PIPE_SIZE - 4 - 1) / sizeof(dt9812_rmw_byte_t))
+
+typedef struct {
+	u8 count;
+	dt9812_rmw_byte_t rmw[DT9812_MAX_NUM_MULTI_BYTE_RMWS];
+} dt9812_rmw_multi_t;
+
+typedef struct dt9812_usb_cmd {
+
+	u32 cmd;
+	union {
+		dt9812_flash_data_t flash_data_info;
+		dt9812_read_multi_t read_multi_info;
+		dt9812_write_multi_t write_multi_info;
+		dt9812_rmw_multi_t rmw_multi_info;
+	} u;
+#if 0
+	WRITE_BYTE_INFO WriteByteInfo;
+	READ_BYTE_INFO ReadByteInfo;
+	WRITE_MULTI_INFO WriteMultiInfo;
+	READ_MULTI_INFO ReadMultiInfo;
+	RMW_BYTE_INFO RMWByteInfo;
+	RMW_MULTI_INFO RMWMultiInfo;
+	DAC_THRESHOLD_INFO DacThresholdInfo;
+	INT_ON_CHANGE_MASK_INFO IntOnChangeMaskInfo;
+	CGL_INFO CglInfo;
+	SUBSYSTEM_INFO SubsystemInfo;
+	CAL_POT_CMD CalPotCmd;
+	WRITE_DEV_BYTE_INFO WriteDevByteInfo;
+	READ_DEV_BYTE_INFO ReadDevByteInfo;
+	WRITE_DEV_MULTI_INFO WriteDevMultiInfo;
+	READ_DEV_MULTI_INFO ReadDevMultiInfo;
+	READ_SINGLE_VALUE_INFO ReadSingleValueInfo;
+	WRITE_SINGLE_VALUE_INFO WriteSingleValueInfo;
+#endif
+} dt9812_usb_cmd_t;
+
+#endif